/*
 * Copyright (c) 2013, SRI International
 * All rights reserved.
 * Licensed under the The BSD 3-Clause License;
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 * 
 * http://opensource.org/licenses/BSD-3-Clause
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of the aic-web-praise nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.sri.ai.lpitools.gwtgui.client.components.admin;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.logical.shared.AttachEvent;
import com.google.gwt.event.logical.shared.AttachEvent.Handler;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.HeaderPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.TextBox;
import com.sri.ai.lpitools.cobra.gwtutil.dataobjects.shared.ModelInfo;
import com.sri.ai.lpitools.gwtgui.client.components.dialogs.MessageDialog;
import com.sri.ai.lpitools.gwtgui.client.components.editor.ModelEditor;
import com.sri.ai.lpitools.gwtgui.client.components.manager.AICManager;
import com.sri.ai.lpitools.gwtgui.client.components.manager.ModelManager;
import com.sri.ai.lpitools.gwtgui.client.components.manager.UserManager;

public class ModelPanel extends HeaderPanel {
	private UserManager userManager;
	private ModelInfo model;
	private String currentText;
	private ModelEditor editor;

	public ModelPanel(ModelManager modelManager, UserManager userManager, ModelInfo model, String modelText, String header, final AdminPanel parent) {
	
		this.userManager = userManager;
		this.model = model;
		this.currentText = modelText;
	
		String modelTitle = "";

		String modelDescription = "";
		if(model != null){
			modelTitle = model.getModelTitle();
			modelDescription = model.getShortDescription();
		}		
		
		final TextBox modelTitleText = new TextBox();
		if (!modelTitle.equalsIgnoreCase("")) {
			modelTitleText.setText(modelTitle);
			modelTitleText.setReadOnly(false);
		}
		modelTitleText.setStyleName("aic-AdminTextBox");
		
		final TextBox modelDescriptionText = new TextBox();	
		if (!modelDescription.equalsIgnoreCase("")) {
			modelDescriptionText.setText(modelDescription);
		}
		modelDescriptionText.setStyleName("aic-AdminTextBox");
		
		Button save = new Button("Save");
	
		save.addClickHandler(new ClickHandler() {
			@Override
			public void onClick(ClickEvent event) {
				if(!modelDescriptionText.getText().equalsIgnoreCase("") && !modelTitleText.getText().equalsIgnoreCase("")){
					saveModel(modelDescriptionText.getText(), modelTitleText.getText());
					parent.updateUserData();
				} else {
					MessageDialog.showMessageDialog("You need to enter a Model Title and a Model Short Description before you can save the model");
				}
			}
		});	
		
		Button close = new Button("Close");

		
		close.addClickHandler(new ClickHandler() {
			@Override
			public void onClick(ClickEvent event) {
				parent.clearRightPanel();
			}
		});	
		Label titleLabel = new Label("Model Name:");
		Label valueLabel = new Label("Model Short Description:");
		
		FlexTable buttonTable = new FlexTable();
		buttonTable.setCellPadding(3);
		buttonTable.setCellSpacing(3);
		buttonTable.setWidget(0,0,save);
		buttonTable.setWidget(0,1,close);
		
		FlexTable editPanel= new FlexTable();
		editPanel.setCellPadding(3);
		editPanel.setCellSpacing(1);
		editPanel.setWidth("100%");
		
		editPanel.setWidget(0, 0, buttonTable);
		editPanel.setWidget(1, 0, titleLabel);
		editPanel.setWidget(2, 0, modelTitleText);
		modelTitleText.setWidth("100%");
		editPanel.setWidget(3, 0, valueLabel);
		editPanel.setWidget(4, 0, modelDescriptionText);
		modelDescriptionText.setWidth("100%");
		
		editor = new ModelEditor(modelManager);
		editor.setSize("100%", "100%");
		editor.setReadOnly();
		
		setHeaderWidget(editPanel);
		setContentWidget(editor);
		setSize("100%", "100%");
		
		addAttachHandler(new Handler() {
			@Override
			public void onAttachOrDetach(AttachEvent event) {
				if (event.isAttached()) {
					editor.setText(editor.reformatText(currentText));
				}
			}
		});
	}
	
	protected void saveModel(String modelDescription, String modelTitle) {
		if(model != null){
			model.setShortDescription(modelDescription);
			model.setModelTitle(modelTitle);
		} else {
			model = new ModelInfo(userManager.getCurrentUser().getUser(), modelTitle, modelDescription, currentText);
		}
		AICManager.saveModelInfo(model, userManager);
	}
}
